- COBOL (ANSI)
- Pascal (ISO)
- Fortran (ANSI, f77)
- C (ANSI-ish)
- Linux/Unix shell script (bash, sh, csh)
- x86 machine language (MS-DOS, Win32, Linux)
- Perl (version 5)
Hideous and elegant simultaneously. All it does is write, “Hello, polyglot.” to stdout. The trick is clever use of comment strings.
Why yes, it is indeed 4am and the baby has been keeping us awake forever.